We Build Railways on the Roof of the World This book is a photo documentary about Chinese railway workers building railways on the roof of the world.Wang Quanquan,the author,has been to Xizang two times and stayed the...We Build Railways on the Roof of the World This book is a photo documentary about Chinese railway workers building railways on the roof of the world.Wang Quanquan,the author,has been to Xizang two times and stayed there for eight years.In the early years of the century,he participated in the building of the Qinghai-Xizang Railway in the"depopulated zone".In 2016,he participated in the building of the Lhasa-Nyingchi Railway,a part of the Sichuan-Xizang Railway.More than 200 photography works of the author are included in this book.The time span of pictures in the book is nearly 20 years.The whole process of the building of two epic railways on the Qinghai-Xizang Plateau is shown,including the Qinghai-Xizang Railway and Lhasa-Nyingchi Railway.From the perspective of the author,this book shows the building and opening to traffic of the railways and the improvement of people's lives in Xizang.It is published by the Foreign Languages Press.展开更多
The high-pressure metamorphic belt （HPMB） of eclogite-blueschist in Central Qiangtang （羌塘） lies in the Longmu Co （龙木错）-Shuanghu （双湖） suture zone. To the west, the HPMB extends 500 km from Hongjishan （...The high-pressure metamorphic belt （HPMB） of eclogite-blueschist in Central Qiangtang （羌塘） lies in the Longmu Co （龙木错）-Shuanghu （双湖） suture zone. To the west, the HPMB extends 500 km from Hongjishan （红脊山） to Caiduochaka （才多茶卡）, east of Shuanghu; to the east it extends to Baqing （巴青） and Jitang （吉塘） in Qamdo （昌都）, and then bends southward to Yunnan （云南） Province. Including the Lancangjiang （澜沧江） blueschist belt, the entire HPMB is about 2 000 km long. In Central Qiangtang, the belt is mainly composed of blueschist and eclogite, whereas in West Yunnan it contains only blueschist. The Baqing-Jitang segment is dominated by garnet phengite schist. 40Ar-39Ar dating of glaucophane and phengite from the blueschists yielded plateau ages ranging from 223 to 215 Ma, whereas SHRIMP U-Pb dating of zircon from the eclogites gives metamorphic ages of 243-217 Ma. The calculated metamorphic conditions for the blueschists are 410-460 ℃ and 0.67-0.75 GPa, and for the eclogites, 〈500℃ and 1.56-2.35 GPa. The metamorphic ages suggest that the Longmu Co-Shuanghu suture closed in the Late Triassic. The region south of the Longmu Co-Shuanghu- Lancang suture consists of the pan-African basement overlain by Condwana sedimentary and metasedimentary rocks, whereas the region north of the suture is dominated by the Jinning （晋宁） basement and Yangtze sedimentary and metasedimentary rocks. The Qiangtang HPMB marks the closure of the paleo-Tethys Ocean.展开更多
Qinghai Zhonghao Natural Gas ChemicalCo Ltd started up a 600 000 t/a naturalgas to methanol unit in the first weekof June in Qaidam Cyclic Economy DemonstrationArea of Qinghai province.Theconstruction was started on J...Qinghai Zhonghao Natural Gas ChemicalCo Ltd started up a 600 000 t/a naturalgas to methanol unit in the first weekof June in Qaidam Cyclic Economy DemonstrationArea of Qinghai province.Theconstruction was started on January 6th,2007 with a total investment of RMB2.1billion.When full operation,it will consume700 cubic meters of natural gas展开更多
文摘We Build Railways on the Roof of the World This book is a photo documentary about Chinese railway workers building railways on the roof of the world.Wang Quanquan,the author,has been to Xizang two times and stayed there for eight years.In the early years of the century,he participated in the building of the Qinghai-Xizang Railway in the"depopulated zone".In 2016,he participated in the building of the Lhasa-Nyingchi Railway,a part of the Sichuan-Xizang Railway.More than 200 photography works of the author are included in this book.The time span of pictures in the book is nearly 20 years.The whole process of the building of two epic railways on the Qinghai-Xizang Plateau is shown,including the Qinghai-Xizang Railway and Lhasa-Nyingchi Railway.From the perspective of the author,this book shows the building and opening to traffic of the railways and the improvement of people's lives in Xizang.It is published by the Foreign Languages Press.
基金supported by the National Natural Science Foundation of China (Nos. 40872146, 40672147, 40773020)China Geological Survey (No. 1212010818015)
文摘The high-pressure metamorphic belt （HPMB） of eclogite-blueschist in Central Qiangtang （羌塘） lies in the Longmu Co （龙木错）-Shuanghu （双湖） suture zone. To the west, the HPMB extends 500 km from Hongjishan （红脊山） to Caiduochaka （才多茶卡）, east of Shuanghu; to the east it extends to Baqing （巴青） and Jitang （吉塘） in Qamdo （昌都）, and then bends southward to Yunnan （云南） Province. Including the Lancangjiang （澜沧江） blueschist belt, the entire HPMB is about 2 000 km long. In Central Qiangtang, the belt is mainly composed of blueschist and eclogite, whereas in West Yunnan it contains only blueschist. The Baqing-Jitang segment is dominated by garnet phengite schist. 40Ar-39Ar dating of glaucophane and phengite from the blueschists yielded plateau ages ranging from 223 to 215 Ma, whereas SHRIMP U-Pb dating of zircon from the eclogites gives metamorphic ages of 243-217 Ma. The calculated metamorphic conditions for the blueschists are 410-460 ℃ and 0.67-0.75 GPa, and for the eclogites, 〈500℃ and 1.56-2.35 GPa. The metamorphic ages suggest that the Longmu Co-Shuanghu suture closed in the Late Triassic. The region south of the Longmu Co-Shuanghu- Lancang suture consists of the pan-African basement overlain by Condwana sedimentary and metasedimentary rocks, whereas the region north of the suture is dominated by the Jinning （晋宁） basement and Yangtze sedimentary and metasedimentary rocks. The Qiangtang HPMB marks the closure of the paleo-Tethys Ocean.
文摘Qinghai Zhonghao Natural Gas ChemicalCo Ltd started up a 600 000 t/a naturalgas to methanol unit in the first weekof June in Qaidam Cyclic Economy DemonstrationArea of Qinghai province.Theconstruction was started on January 6th,2007 with a total investment of RMB2.1billion.When full operation,it will consume700 cubic meters of natural gas
